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Field Seminars

Applied Stratigraphy of Paleozoic Carbonate Platforms; Facies, Cycles, Sequences, Reefs, Reservoirs

INSTRUCTOR :

John E. Warme, Colorado School of Mines, Golden, CO

INSTRUCTOR LOOKUP

DATES:

October 10 - 13, 2010

LOCATION:

Begins and ends in at the Las Vegas airport. (begins at noon on Oct. 10 and ends early evening on Oct 13.

TUITION:

$1,450.00 Sign Up Now
Goes up to $1550 after 9/10/2010. Includes transportation from Las Vegas and return to Las Vegas, lunches, one dinner, daily snacks, course notes. Does not include other meals or lodging.
No refunds for cancellations after 9/10/2010.

LIMIT:

15 people

CONTENT:

2.3 CEU What is a CEU?

Who Should Attend

Geologists, geophysicists, engineers exploring and developing hydrocarbon reservoirs in ancient carbonate platforms and reefs.

Objectives and Content

This Field Seminar uses the superb exposures of thick Devonian formations in southern Nevada to demonstrate the vertical and lateral distribution of common limestone, dolostone, reef, and minor evaporite facies that develop within carbonate platforms and platform margins. After a basic review of the driving forces on sedimentation and diagenesis on carbonate platforms, emphasis is on fundamental, practical field observations and interpretations rather than detailed theory on intrinsic versus extrinsic forces that drive carbonate platform depositional cycles. Basic characteristics of platform deposition are enforced by field exercises that demonstrate the character and interpretation of carbonate cycles, cycle stacks, and cycle bundles. Participants will learn to recognize significant flooding surfaces and relative low-stand-exposure karsted intervals that represent correlation markers and regional sequence boundaries. Porosity trends are shown to relate to original depositional cycles, exposure surfaces, karst development, and regional burial diagenesis and dolomitization. We will differentiate and evaluate carbonate breccias that were generated by different processes: tectonic, karst, solution collapse, mass flow, and catastrophic. Each has different properties, distributions, and reservoir potential. Important anomalies are recognized that punctuate the thick platform facies, including stacked and overprinted karst events, and the massive catastrophic Alamo Impact Breccia that covered the study area at an instant of Devonian time.

• Brief overview of stratigraphic characteristics of carbonate platforms and platform margins.
• Characteristics of carbonate platform cyclic sedimentation.
• Cyclic intervals of potential primary porosity.
• Regional exposure surfaces and development of karst-related permeability.
• Regional burial dolomitization.
• Devonian stromatoporoid/coral reef and off-reef facies; relationship to Devonian reef reservoirs in Alberta and elsewhere.
• Reef exposure, diagenesis, and karst solution.
• Recognition of stratigraphic anomalies that represent significant potential for hydrocarbon trapping and recovery, mainly regional breccias of various origins.